Akira Hayasaka, who visits martial arts dojos such as karate and spars with various opponents, is now set to fight the members of the Jinbukan dojo. His fight with Todo of the Jinbukan is cut short when the police arrive, but Hayasaka manages to break Todo's leg in an instant. Next, Hayasaka participates in the Shinwakai karate tournament, and the members of the Jinbukan also come to the venue to watch him. In front of them, Hayasaka wins his matches with a series of unbelievable techniques.